Added the Sheepstar API to the Archive

SheepstarAPIV1/middlewares/checkPermission.js

@@ -0,0 +1,25 @@
+const GrantedPermission = require("../models/GrantedPermission");
+const Session = require("../models/Session");
+
+module.exports = function(permissionNode) {
+    return async function(req, res, next) {
+
+        // Set the token
+        let token = req.token;
+        if (req.tokenType === "client") token = req.clientId;
+
+        // Get permissions from client
+        const clientPermissions = await GrantedPermission.findAll({where: {token: token}});
+
+        // Check permission
+        for (let permission in clientPermissions) {
+            if (clientPermissions[permission].permissionNode === "*") return next();
+            try {
+                if (new RegExp(clientPermissions[permission].permissionNode).test(permissionNode)) return next();
+            } catch {}
+        }
+
+        // Return if client has no permission
+        res.status(403).json({message: `You need the permission '${permissionNode}' to perform this action.`});
+    }
+}